Improvement in pegging-machines



Y Pegging-Machine.

No.159 423 PmntedFemznam.

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` H. KUHLMANN.

Peggin'g-Machine. No. 159,423. Patented Feb. 2,1875.

a a J7# Inventor I THE GRAPHICLO.PHUTLITHSRH PARK PLACEJLY,

v v vSheets--Sheet 4 H. KUHLMANN. Pegging-Machine.

. Pae'nted Feb. 2,1875.

THE GRAPHIC CO. PHQTO LITH.39& 44 PARK PLACE,N.Y.

UNITED STATES PATENT OFFICE.

HENRY KUHLMANN, OF HAMBURG, GERMANY.

IMPROVEMENT IN PEGGlNG-MACHINES.

Specification forming part of Letters Patent No. 159,423, dated February 2, 1875 application led December 23, 1874.

To all whom it may concern:

Be it known that I, HENRY KUELMANN, of Hamburg, of the Empire of Germany, have invented certain Improvements in Machines for Peggin g Boots and Shoes; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawing forming part of this specification.

My invention relates to certain improvements on the machine for which Letters Patent No. 130,301 were granted to me under date of August 6, 187 2; and it consists in a novel construction and arrangement of various devices for accomplishing the same results as in said machine, but in a different and superior manner.

In the accompanying drawing, Figure 1 is a side elevation of a machine constructed according to my present invention. Fig. 2 isa front elevation of the same. Fig. 3 is a top view. Fig. 4 is a top view partly in section. Fig. 5 is an enlarged side elevation, showing the side opposite to that shownin Fig. l. Fig. 6 is an enlarged partial view of the side shown in Fig. 1. Figs. 7, 8, 9, and 10 are detail views.

The main frameAhas its lower end resting on and attached to a bed or table, B, which is supported by a suitable framework or base. The driving-shaft C is arranged in the upper portion of the frame A, and is provided with a iiy-wheel, E. The shaft may receive motion from a treadle, D, under the table, or in any other suitable manner. The boot or shoe, with its last, is carried by adjustable heel and toe supports or rests Fl F2, which are attached to a slide, F, provided with a hand-lever, G, for adjusting it in the direction of the width of the shoe.- The slide F travels on a subslide, I, which moves on dovetailed ways J, rigidly attached to the bed B, and arranged in transverse relation with the upper slide, so that the two slides move in directions which are at right angles with each other. The slide I is operated automatically to provide for the insertion of the pegs in regular order by means of a pitman, b, worked by the main shaft C, and arranged to rock a shaft, K, below the table, which shaft K carries a grooved cam, c, that serves to actuate'a pawl-and-ratchet mechanism, L, which gives motion to a screw, M, to rotate it in one direction, so as to insure the forward feed of the slide I, with which said screw is in gear by a box, N. This box is connected with a weighted lever, O, that may also be controlled by a spring, d, whereby said box is held in gear with the screw to secure the necessary automatic action of the slide I. By raising the weighted lever O the box N may be uncoupled from the screw, so that the slide I, with the slide or shoe-holder F upon it, may be run back by hand. The screw M may also be operated by hand through a crank or handle, c, to set the shoe-holder in position to commence the work of pegging.

The devices above described are substantially the saine in their construction and operation as those for the same purposes which are described in my patent aforesaid.

The work carried by the shoe-holder is fed up to and operated upon by the awl P in the same manner as described in said patent, the ,awl being driven by a spring h, as therein described. lhe connection between the grooved cam c on the shaft K, and the pawl-and-ratchet mechanism L is made by an elbow-lever, K", and rod or link l", (see Figs. 4 and 5,) which are so arranged as to remain motionless ,during a portion of the revolution of the main shaft C, so that the support which carries the work remains stationary, while the awl descends and makes the hole in the sole, and until after the peg has been inserted and driven home by the peg-driver, after which the slide I moves along a distance equal to the desired space between the pegs, so as to receive the next stroke of the awl in the proper place, said slide being operated by the screw M, driven by the mechanism L, as before described. The distance which the slide I is moved by the screw M may be regulated by means of a lever, Mx, which is pivoted under the table B, and has its short arm connected with a clutch, m", sliding on the shaft K, and engaging with the grooved cam c by means of a pin and a curved groove, so that, by moving the lever MX in one direction or the other, the play of the lever K in the groove of the cam c is regulated, and the action of the pawland-ratchet mechanism L is governed. thereby. The long arm of the lever M is arranged to engage with a rack, n, for the purpose of holding it in any desired position.

For operating the awl and peg-driver and peg-feeding mechanism the following described devices are employed: On the driving-shaft C are two face-cams, B2 B3, arranged to turn with said shaft. The bearing surfaces of these cams are shaped exactly alike, but they are so arranged with relation to each other that the convex portion of one cam is exactly opposite the concave portion of the other cam, said cams being arranged on the shaft with their bearing-surfaces toward each other. Un the main slide, C2, which carries the awl P1 and peg-driver P2, are plates cx c2, which e'xtend toward the rear side of said slide, and are provided with friction-rollers d* d2, arranged to revolve in a direction at right angles to the line of travel of said slide. As the driving-shaft C revolves, the cams B2 B2 bear against the rollers d* d2, and alternately force the main slide, G2, backward or forward, in a direction from or toward the operator. The awl P1 and peg-driver P2 are attached to the vlower ends of rods g1 g2, which slide vertically in the main slide, C2, in a similar manner to that described in my patent aforesaid, and are provided with springs h h2, for driving them. The awl P1, and peg-driver P2, are entirely independent of each other in their operation, being attached to separate rods and driven by separate springs. On the rods g1 g2 are arms f, which pass through slots in the slide C2, and project beyond the rear Side thereof. In the upper portion of the frame A in which the slide G2 works, are two arms, aX a, which extend toward each other parallel with the main shaft C, until within a distance of each other nearly equal to the width of one ofthe arms f. On the shaft C is a doublearmed cam or lifter, Q, which operates in connection with the parts just described, in the following manner: The parts being in the position shown in Fig. 5, with the awl P1 in its lowest position, as the shaft C revolves, one arm of the cam or lifter Q passes under the arm f of the rod G1 and raises it until said arm f passes between and is on a level with the upper sides of the arms a* ax2, at which mom ent the convex portion of the cam B3 bears against the roller d2 in the plate c2, and forces the slide C2 forward toward the operator, which movement carries the arm f of the rod g1 in a forward direction along the upper side of the arm a", and brings the arm f of the rod g2 in the same direction along the upper side of the arm @"2 until it reaches the opening between the inner ends of the arms a* (1X2, when the rod g2 is driven downward b v its spring h3, so that the peg-driver P2, at its lower end, will drive the peg which has in the mean time been placed in position by mechanism hereinafter described. As the revolution of the shaft continues, the other end of the cam Q passes under the arm f and lifts the peg-driver rod until the arm f is on a level with the upper side of the arm ax2, when the cam B2 forces the slide G2 backward until the arm f of the awl-rod g2 reaches the opening between the ends of the arms ax a, when said awl-rod is driven downward by the spring Ah, so that the awl P1 will make another hole in the sole, after which it is raised by the lifter Q in the manner before described.

The wood strip from which the pegs are cut is rolled up and placed upon a cross, D2, one arm of which is attached to a frame, E2, arranged to slide vertically on the main frame A, in ways provided for the purpose. One end of the strip is passed behind a pin, e2, and then between a spring, )2, on the frame E2, and a toothed wheel, i2, on a vertical shaft, J2, the lower end of which is attached to the frame E2, and the upper end of which passes through t a ratchet-wheel, k2, or a series of said wheels with graduated teeth. The ratchet wheel or wheels k2 lie between two lugs or plates on the main frame, which prevent 4them from rising and falling, and they connect with the shaft J2 by a spline and feather, so that said shaft must turn with the wheel, but is free to rise and fall therein. The pawl m2, which gives motion to the ratchet-wheel k2, is attached to an arm, l2, which works in an obtuse angular slot in a plate, p2, attached to the slide C2, so that as the slide 02 is moved back and forward, it oscillates the arm Z2 andactuates the pawl m2, thus giving motion to the ratchetwheel and to the vertical shaft J2 and toothed wheel t2, and feeding the wood to the knife to be cut into pegs.

0n the shaft K is a grooved cam, c2, similar to the cam c, and adjoining the same on the shaft. (See'Figs. 4, 5, and 6.) A lever, d3, has one end pivoted to a projection on the under side of the table B, and the other end attached to arod or link, e2, between which ends is a friction roller, which engages with a curved groove in the periphery of the cam c3. The rod or link e3 connects the lever d3 with a nut, f3, which lies between two lugs on a bracket, g3, extending down from the under side of the table, so as to prevent it from rising. The nutf3 engages with a screw-thread on the lower end of a rod, H3, which passes vertically upward through the table B and frame A, and has its upper end attached to the frame E2.

As the shaft K revolves, after the peg-driver has driven the peg and before the awl descends to make another hole, the operation of the cam c3 and lever d3 turns the nut f3 on the threaded portion of the rod H3, raising said rod and lifting the frame E2 and peg-guide Gr4 slightly, so as to allow the shoe to be moved along to receive another stroke of the awl without being obstructed by the peg-guide on said frame, the upward movement of the frame and the forward movement of the slide carrying the shoe being simultaneous with each other. By means of a lever, E, (see Figs. 1, 2, and 3,) the frame E2 is lifted out of the way when necessary. As the wood strip for the peg is moved forward by the wheel t2 the knife K4 comes iD.

contact with the strip, :near its end, and cuts therefrom a peg, which is driven by the pegdriver into the hole made by the awl. As the peg-driver rises and the slide C2 moves toward the rear of the machine, the knife is caused to recede from the wood by means of a vertical lever, Z4, pivoted to the frame E2. 'Ihe upper end of the lever Z4 is provided with a frictionroller which works in a vertical slot, s2, in the slide C2. The lower .end of the lever Z4 works in a slot or groove formed in the lever 'm4 near its end, and running obliquely with relation to the length of said lever. The inner end of the lever m4 is attached to the frame E2, and the outer end carries the knife K4. As the work moves forward to receive the stroke of the awl, and simultaneouslytherewith theslide02moves forward to allow the awl to descend, the slot s2 carries the upper end of the lever Z4 forward and its lower end backward, which lower end, bearing against the inclined groove or slot in the lever m4, moves the end of said lever outward and allowing the wood to be fed along without coming in contact with the knife. As the awl rises and the slide G2 moves forward again preparatory to the descent of the pegdriver, the slot s2 reverses the position of the lever Z4, causing its lower end, in its engagement with the inclined groove or slot, to move the end of the lever m4 inward and force the knife K4 against the wood to cut another peg.

. As the woodl is fed along for the pegs the end of the strip passes into the peg-guide G4, which always remains in the same position, without being affected by the lateral motion of the slide G2.

When it is desired to place the pegs in the sole in two rows, or in a zigzag row, the following described mechanism is employed: On the main shaft G is a toothed wheel, B5, which engages with a similar wheel, G5, of double the diameter. On one side of this wheel C5 is a cam-surface, d5, which bears against a roller, e5, in the upper end of a lever, F5, pivoted to the frameA and having its lower end connected with a slide, G5, toA which the sole-guide H5 is attached. The whee1G5, being double the size of the wheel B5, makes but one revolution for every two revolutions of the main shaft C.

Through the operation of this mechanism, as the main shaft revolves the sole-guide H5 is alternately pushed outward and drawn inward so as to cause the pegs to be inserted in the sole in a zigzag row, or in two rows the pegs of which occupy alternate positions with relation to eachother. This apparatus is thrown in or out of gear by means of a handle or lever, I5, on the pivot of which is a cam, Z5, which bears against the lever F5 to throw it in or out of engagement with the cam-surface d5. (See Figs. 1, 3, 5, and 6.)

What I claim as new7 and desire to secure by Letters Patent, is-

1. The combination of the cam o3, lever d3, :nut f3, and rod H3, substantially as and for the purposes shown and described.

2. The combination, with the frame E2 and rod J2, of mechanism whereby said frame E2 is raised to allow the work to be moved forward without obstruction, substantially as shown and described.

3. The combination of the slide G2 and rod J2 and attached mechanism for feeding the wood-strip, substantially as shown and described.

et. The combination of the slide C2, lever Z4, and lever m4, for operating the knife, substantially as shown and described.

5. In combination with the awl-rod P1 and hammer-rod P2, moving independently of each other, the double-armed cam or lifter Q, arranged to operate alternately on said awl-rod and hammer-rod, substantially as shown and described.

6. The combination of the wheel B5 on the shaft G, the wheel G5 having the cam-surface d5, the lever F5, slide G5, and sole-guide H5, whereby the pegs may be placed in the sole in a zigzag or double row, substantially as shown and described.

In testimony that I claim the foregoing I have hereunto set my hand this 9th day of November, 1874.

H. KUHLMANN.

Witnesses FRANK WIRTH, FRANZ HAssLAcHER. 

